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Drill Bit | Bit Dia.(mm) | Spline Num. | Gauge Buttons |
BR1 | 64 | 6 | 6×φ10 |
70 | 6 | 6×φ12 | |
76 | 6 | 6×φ12 | |
BR2 | 76 | 6 | 6×φ12 |
80 | 6 | 6×φ13 | |
90 | 6 | 6×φ14 | |
KD25 | 76 | 6 | 6×φ12 |
82 | 6 | 6×φ14 | |
90 | 6 | 6×φ14 |